Add option to install an ephemeral app to ChromeOS shelf context menu

chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc

Index: chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc
diff --git a/chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc b/chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc
index 14d80ecafdd11bacf235fe449a7c0d1b8fffed59..c3f0bad94eff227227d13af7f4848b4da33c920b 100644
--- a/chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc
+++ b/chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.cc
@@ -9,6 +9,7 @@
 #include "ash/shelf/shelf_model.h"
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_util.h"
+#include "chrome/browser/extensions/webstore_install_with_prompt.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_app_menu_item.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_app_menu_item_v2app.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
@@ -50,6 +51,14 @@ scoped_ptr<gfx::Image> GetAppListIcon(AppWindow* app_window) {
       new gfx::Image(gfx::ImageSkia::CreateFrom1xBitmap(bmp)));
 }
 
+// Returns true if the app window is visible on screen, i.e. not hidden or
+// minimized.
+bool IsAppWindowVisible(AppWindow* app_window) {
+  return app_window &&
+         !app_window->is_hidden() &&
+         !app_window->GetBaseWindow()->IsMinimized();
+}
+
 // Functor for std::find_if used in AppLauncherItemController.
 class AppWindowHasWindow {
  public:
@@ -151,6 +160,38 @@ void AppWindowLauncherItemController::ActivateIndexedApp(size_t index) {
   ShowAndActivateOrMinimize(*it);
 }
 
+void AppWindowLauncherItemController::InstallApp() {
+  // Find a visible window in order to position the install dialog. If there is
+  // no visible window, the dialog will be centered on the screen.
+  AppWindow* parent_window = NULL;
+  if (IsAppWindowVisible(last_active_app_window_)) {
+    parent_window = last_active_app_window_;
+  } else {
+    for (AppWindowList::iterator iter = app_windows_.begin();
+         iter != app_windows_.end(); ++iter) {
+      if (IsAppWindowVisible(*iter)) {
+        parent_window = *iter;
+        break;
+      }
+    }
+  }
+
+  scoped_refptr<extensions::WebstoreInstallWithPrompt> installer;
+  if (parent_window) {
+    installer = new extensions::WebstoreInstallWithPrompt(
+        app_id(),
+        launcher_controller()->profile(),
+        parent_window->GetNativeWindow(),
+        extensions::WebstoreInstallWithPrompt::Callback());
+  } else {
+    installer = new extensions::WebstoreInstallWithPrompt(
+        app_id(),
+        launcher_controller()->profile(),
+        extensions::WebstoreInstallWithPrompt::Callback());
+  }
+  installer->BeginInstall();
+}
+
 ChromeLauncherAppMenuItems AppWindowLauncherItemController::GetApplicationList(
     int event_flags) {
   ChromeLauncherAppMenuItems items;